(1993). Journal for farming systems research- extension. Association for Farming Systems Research- Extension.
シカゴスタイル引用形Journal for Farming Systems Research- Extension. Association for Farming Systems Research- Extension, 1993.
MLA引用形式Journal for Farming Systems Research- Extension. Association for Farming Systems Research- Extension, 1993.
警告: この引用は必ずしも正確ではありません.